package cn.web.tunnelrobot.controller;

import com.alibaba.fastjson.JSONObject;
import lombok.extern.slf4j.Slf4j;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import javax.websocket.*;
import javax.websocket.server.ServerEndpoint;
import java.io.IOException;
import java.util.HashMap;
import java.util.concurrent.CopyOnWriteArraySet;
@Slf4j
@ServerEndpoint(value = "/websocket1")

public class WebSocketServer1 {
    static Logger loggers = LoggerFactory.getLogger(WebSocketServer1.class);
    //静态变量，用来记录当前在线连接数。应该把它设计成线程安全的。
    private static int onlineCount = 0;
    //concurrent包的线程安全Set，用来存放每个客户端对应的MyWebSocket对象。
    private static CopyOnWriteArraySet<WebSocketServer1> webSocketSet = new CopyOnWriteArraySet<WebSocketServer1>();

    //与某个客户端的连接会话，需要通过它来给客户端发送数据
    private Session session;

    /**
     * 连接建立成功调用的方法*/
    @OnOpen
    public void onOpen(Session session) {
        HashMap<String,Object> map = new HashMap<>();
        this.session = session;
        webSocketSet.add(this);     //加入set中
        addOnlineCount();           //在线数加1
        loggers.info("有新连接加入！当前在线人数为" + getOnlineCount());
//        log.info();
//        try {
//            sendMessage("链接成功");
//        } catch (IOException e) {
//            System.out.println("websocket IO异常");
//        }
    }

    /**
     * 连接关闭调用的方法
     */
    @OnClose
    public void onClose() {
        webSocketSet.remove(this);  //从set中删除
        subOnlineCount();           //在线数减1
        loggers.info("有一连接关闭！当前在线人数为" + getOnlineCount());
    }

    /**
     * 收到客户端消息后调用的方法
     *
     * @param message 客户端发送过来的消息*/
    @OnMessage
    public void onMessage(String message, Session session) {
        loggers.info("来自客户端的消息:" + message);
        //群发消息
        for (WebSocketServer1 item : webSocketSet) {
            try {
                item.sendMessage(message);
            } catch (IOException e) {
                loggers.error("未连接机器人");
            }
        }
    }

    /**
     *
     * @param session
     * @param error
     */
    @OnError
    public void onError(Session session, Throwable error) {
        loggers.error("发生错误");
        error.printStackTrace();
    }
    public void sendMessage(String message) throws IOException {
        this.session.getBasicRemote().sendText(message);
    }
    /**
     * 群发自定义消息-实时报警信息
     * */
    public static void sendInfo(String message) throws IOException {
        JSONObject jsonObject = JSONObject.parseObject(message);
        if(jsonObject.getString("code").equals("-1")){
            loggers.info("实时报警信息"+message);
        }
        for (WebSocketServer1 item : webSocketSet) {
            try {
                item.sendMessage(message);
            } catch (IOException e) {
                continue;
            }
        }
    }

    public static synchronized int getOnlineCount() {
        return onlineCount;
    }

    public static synchronized void addOnlineCount() {
        WebSocketServer1.onlineCount++;
    }

    public static synchronized void subOnlineCount() {
        WebSocketServer1.onlineCount--;
    }

}
